Bibliography: v. 1, p. 493-503; v. 2, p. 508-522; v. 3, p. 508-523; v. 4, p. 562-581; v. 5, p. 493-514; v. 6, p.401-424
v. 1. The earlier Presocratics and Pythagoreans.--v. 2. The Presocratic tradition from Parmenides to Democritus.--v. 3. The fifth-century enlightenment.--v. 4. Plato-The man and his dialogues: Earlier Period.--v. 5. The later Plato and the Academy.--v. 6. Aristotle, an encounter